Macros: Declaring a constructor on a generic class with an implements breaks generation

[rrousselGit]

Consider:

macro class Example implements ClassDeclarationsMacro {
  const Example();

  @override
  FutureOr<void> buildDeclarationsForClass(
    ClassDeclaration clazz,
    MemberDeclarationBuilder builder,
  ) async {
    builder.declareInType(DeclarationCode.fromParts([
      'SimpleA();',
    ]);
  }
}

Then used as:

class Simple {}

@Example()
class SimpleA<T> implements Simple {}

The code-generation appears to fail in this case.

Removing <T> or the implements fixes the issue

[davidmorgan]

Thanks! This will need fixing but it's not high priority right now, so moving to the backlog.